upgrade constant

String const upgrade

Implementation

static const String upgrade =
    '<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="32" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path fill="currentColor" d="M21 24H11a2 2 0 00-2 2v2a2 2 0 002 2h10a2 2 0 002-2v-2a2 2 0 00-2-2zm0 4H11v-2h10zm7.707-13.707-12-12a1 1 0 00-1.414 0l-12 12A1 1 0 004 16h5v4a2.002 2.002 0 002 2h10a2.003 2.003 0 002-2v-4h5a1 1 0 00.707-1.707zM21 14v6H11v-6H6.414L16 4.414 25.586 14z"/></svg>';